Giant flying machine



C DORNIER GIANT FLYING MACHINE Filed June 28 1920 I INVENTORI' M mw.

To all whom it may concern.

Patented Sept. 23, 1924.

UNITED STATES PATENT OFFICE.

GIANT FLYING MACHINE.

Application filed June 28, 1920. Serial Ho. 392,566.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921, 41 STAT. L, 1818.)

Be it known that I, CLAUDIUS DoRNmR, a citizen of the'German Empire, residing at Friedrichshafen a/B., Germany, have invented certain new and useful Improvements in Giant Flying Machines, of which the following is a specification.

y invention refers-to flying machines and more especially to improvements which prove advantageous particularly for giant hydroplanes. I y

,In a type of flying machine hitherto devlsed the accommodation of the motor plant in an enlarged part of the main supporting plane greatly simplified the design of these parts, and also involved a reduction of their total resistance and an increase of the vacant spaceavailable.

It is an object of the present invention tov still further develop the advantages mentioned and to create a giant flying machine, which is distinguished by the strictest symmetry of the engine plant and by its particularly favorable arrangement with regard to the hull. According to my invention the framework carrying the engine plant which is composed of two motors arranged tandem-fashion one behind the other on a common axis, merges in its lower part into the supporting structure of the main supporting plane. The engine casing thus forms part of the supporting plane and at the same time forms a turret bracing said plane. The main supporting plane itself is connected with the hull of the boat arranged below the propeller circles, by means of suitable frame work. The main supporting plane, besides being stayed against the upper part of the engine casing, is also secured in its correct position in regard to the hull of the boat by means of special braces resting on fins emerging from the hull of the boat underneath the engine casing.

t The engine plant and the supporting plane together with the framework supporting same and the propeller circles being situated above the hull of the boat, the latter, can be arranged in such a manner as to project beyond the entrance'edge of the supporting plane at least approximately by the depth of the supporting planes. By this means a favorable distribution of masses is obtained without it being necessary to reduce hull of the boat.

The drawing attached to this specification and forming part thereof, illustrates in a diagrammatic manner and 10 way of example a flying machine embo ying my invention, Figs. 1, 2 and 3 being a side view, a top view and 'front view, respectively.

The supporting plane A is enlarged in its central part to form an engine casing a extending from it and containin two the space available in the motors C arranged one behind the ot er on supporting plane and serves as a staying turret. A frame work of tubes F of streamline section supports the supporting plane A above the hull B of the boat at such a height that the upper edge of the hull remains a little under the lowest points of the two propeller circles. The hull of the boat B is extended on both sides below the supporting plane A to form stub wings or fins. At the ends 6 of these stub wings stays G lead to the supporting plane A which secure the latter and the engine casing at extending from it, in their position in regard to the hull of the boat B. The latter projects beyond the plane of the forward propeller about the distance of the two propellers 'E. Besides the room available in the hull of the boat between the rear propeller and rudder, further accommodation is provided in this forward part for the crew which can thus walk from the front to the rear end of the hull.

I wish it to be understood that I do not skilled in the art.

I claim 1. In a flying machine in combination,

a hull, a supporting plane above said hull, tandem motors above said plane in the plane of symmetry of the machine,

porting said motors and forming part of the supporting plane structure and stub a frame sup-' win s emerging from said hull and arranged for racin said supporting plane.

2. In a ying machine in combination, a'

hull, a supporting plane above said hull, tandem motors above said lane in the plane of symmetry of the mac ine, a frame supporting said motors and forming part of the supporting plane structure, stub wings emerging from said hull and bracin means extending from the outer ends 0 said stub fins to the underside of said sup porting plane.

3. In a flying machine in combination, a. hull, a supporting plane above said hull,

tandem motors above said lane in the plane of symmetry of the mac ine, a frame supporting said motors and forming part of the supporting plane structure, stub wings emerging rom said hull, bracing means extending from the outer ends of said stub wings to the underside of said supporting plane, a casing around said motors and bracing means extending from said casing to the upper side of said supporting plane.

In testimony whereof I aflix m signature.

CLAUDE D RNIER. 

